Abstract Number ‐ 278: Transient Ischemic Attack Evaluation Pathways: Inpatient Versus Expedited Outpatient Comparative Analysis

Introduction Transient Ischemic Attack (TIA) evaluation requires urgent etiology identification and targeted stroke prevention, traditionally performed via hospital admission. The literature suggests that outpatient evaluation may be safe and cost‐effective. Hence, we implemented an expedited outpat...

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Main Authors: Parth P Parikh, Hira Chaudhary, Nour Alhayek, Juli Kelly, Brandi Butterfield, Andrej Urumov, Bart Demaerschalk, Oana Dumitrascu
Format: Article
Language:English
Published: Wiley 2023-03-01
Series:Stroke: Vascular and Interventional Neurology
Online Access:https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_1.278
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author Parth P Parikh
Hira Chaudhary
Nour Alhayek
Juli Kelly
Brandi Butterfield
Andrej Urumov
Bart Demaerschalk
Oana Dumitrascu
author_facet Parth P Parikh
Hira Chaudhary
Nour Alhayek
Juli Kelly
Brandi Butterfield
Andrej Urumov
Bart Demaerschalk
Oana Dumitrascu
author_sort Parth P Parikh
collection DOAJ
description Introduction Transient Ischemic Attack (TIA) evaluation requires urgent etiology identification and targeted stroke prevention, traditionally performed via hospital admission. The literature suggests that outpatient evaluation may be safe and cost‐effective. Hence, we implemented an expedited outpatient pathway (OP) for patients presenting to our institution’s Emergency Department (ED) with TIA. To further guide future practice, we compared clinical features and outcomes between expedited OP and our well‐established inpatient pathway (IP). Methods We implemented an algorithm of direct communication between ED providers and Vascular Neurologists for all TIA patients. Certain screening studies (head CT, CT angiogram, basic laboratories) and acute therapies were implemented in the ED, whereas others (brain MRI, echocardiogram, etc) and Vascular Neurology consultations were expedited outpatient within 48–72 hours.We included all patients that underwent OP evaluation from May 2021‐May 2022. Further, we extracted patients with a final diagnosis of TIA and compared them with IP TIA patients hospitalized (2017‐2021), matched by age, gender, and clinical severity (ABCD2). Descriptive statistics were used to summarize patient demographics, clinical data, treatments, and 3‐month outcomes. Continuous variables were summarized with mean and standard deviations while categorical variables were shown as counts and percentages. Chi‐square test was used for categorical variables and Mann‐Whitney U test was used to compare continuous variables. P‐values < 0.05 were considered statistically significant and all tests were two‐sided. Statistical Analysis was completed in R 4.0.3. Results Of 43 patients who underwent expedited OP TIA workup, TIA or minor stroke was diagnosed in 21/43 (48.9%). 18 TIAs underwent comparative analyses. Mean symptom duration was longer in the IP (2.06 hours) than OP (0.99 hours), p = 0.370%. TIA was more likely to be diagnosed in the OP 14/18 (78%) versus IP 12/18 (67%), (p = 0.423). OP had more transesophageal echocardiograms (17% vs 5%, p = 0.630) and longer duration of ambulatory cardiac monitoring (mean 574.3 vs 381.7 hours, p = 0.100). IP patients were more likely to get started on anticoagulation compared to OP (38% vs 11%, p = 0.258) and high‐intensity statin (38% vs 17%, p = 0.260). All laboratories, echocardiograms and brain MR imaging were performed significantly sooner for the IP (p< 0.05 for all). IP had higher rate of return ED visits (22%) and readmissions at 3 months (11%), whereas OP had none. OP had no deaths or recurrent strokes, whereas 11% and 5.6% respectively were noted in the IP at 3 months (p = 0.310, p = 0.310). Conclusions Our study shows that routine IP evaluation for patients presenting with TIA in the ED may not offer diagnostic superiority nor lead to improvement of short‐term clinical outcomes, as compared to the expedited OP evaluation. Careful evaluation of TIA patients in the ED followed by expedited OP evaluation might be a plausible approach to help lower costs and avoid hospitalization without compromising the safety of these patients.
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spelling doaj.art-8f42429295c04f128277da25cb6751252023-06-15T10:40:48ZengWileyStroke: Vascular and Interventional Neurology2694-57462023-03-013S110.1161/SVIN.03.suppl_1.278Abstract Number ‐ 278: Transient Ischemic Attack Evaluation Pathways: Inpatient Versus Expedited Outpatient Comparative AnalysisParth P Parikh0Hira Chaudhary1Nour Alhayek2Juli Kelly3Brandi Butterfield4Andrej Urumov5Bart Demaerschalk6Oana Dumitrascu7Mayo Clinic Alix School of Medicine ‐ Arizona Scottsdale Arizona United States of AmericaMayo Clinic Arizona Phoenix United States of AmericaMayo Clinic Arizona Phoenix United States of AmericaMayo Clinic Arizona Phoenix United States of AmericaMayo Clinic Arizona Phoenix United States of AmericaMayo Clinic Arizona Phoenix United States of AmericaMayo Clinic Arizona Phoenix United States of AmericaMayo Clinic Arizona Phoenix United States of AmericaIntroduction Transient Ischemic Attack (TIA) evaluation requires urgent etiology identification and targeted stroke prevention, traditionally performed via hospital admission. The literature suggests that outpatient evaluation may be safe and cost‐effective. Hence, we implemented an expedited outpatient pathway (OP) for patients presenting to our institution’s Emergency Department (ED) with TIA. To further guide future practice, we compared clinical features and outcomes between expedited OP and our well‐established inpatient pathway (IP). Methods We implemented an algorithm of direct communication between ED providers and Vascular Neurologists for all TIA patients. Certain screening studies (head CT, CT angiogram, basic laboratories) and acute therapies were implemented in the ED, whereas others (brain MRI, echocardiogram, etc) and Vascular Neurology consultations were expedited outpatient within 48–72 hours.We included all patients that underwent OP evaluation from May 2021‐May 2022. Further, we extracted patients with a final diagnosis of TIA and compared them with IP TIA patients hospitalized (2017‐2021), matched by age, gender, and clinical severity (ABCD2). Descriptive statistics were used to summarize patient demographics, clinical data, treatments, and 3‐month outcomes. Continuous variables were summarized with mean and standard deviations while categorical variables were shown as counts and percentages. Chi‐square test was used for categorical variables and Mann‐Whitney U test was used to compare continuous variables. P‐values < 0.05 were considered statistically significant and all tests were two‐sided. Statistical Analysis was completed in R 4.0.3. Results Of 43 patients who underwent expedited OP TIA workup, TIA or minor stroke was diagnosed in 21/43 (48.9%). 18 TIAs underwent comparative analyses. Mean symptom duration was longer in the IP (2.06 hours) than OP (0.99 hours), p = 0.370%. TIA was more likely to be diagnosed in the OP 14/18 (78%) versus IP 12/18 (67%), (p = 0.423). OP had more transesophageal echocardiograms (17% vs 5%, p = 0.630) and longer duration of ambulatory cardiac monitoring (mean 574.3 vs 381.7 hours, p = 0.100). IP patients were more likely to get started on anticoagulation compared to OP (38% vs 11%, p = 0.258) and high‐intensity statin (38% vs 17%, p = 0.260). All laboratories, echocardiograms and brain MR imaging were performed significantly sooner for the IP (p< 0.05 for all). IP had higher rate of return ED visits (22%) and readmissions at 3 months (11%), whereas OP had none. OP had no deaths or recurrent strokes, whereas 11% and 5.6% respectively were noted in the IP at 3 months (p = 0.310, p = 0.310). Conclusions Our study shows that routine IP evaluation for patients presenting with TIA in the ED may not offer diagnostic superiority nor lead to improvement of short‐term clinical outcomes, as compared to the expedited OP evaluation. Careful evaluation of TIA patients in the ED followed by expedited OP evaluation might be a plausible approach to help lower costs and avoid hospitalization without compromising the safety of these patients.https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_1.278
spellingShingle Parth P Parikh
Hira Chaudhary
Nour Alhayek
Juli Kelly
Brandi Butterfield
Andrej Urumov
Bart Demaerschalk
Oana Dumitrascu
Abstract Number ‐ 278: Transient Ischemic Attack Evaluation Pathways: Inpatient Versus Expedited Outpatient Comparative Analysis
Stroke: Vascular and Interventional Neurology
title Abstract Number ‐ 278: Transient Ischemic Attack Evaluation Pathways: Inpatient Versus Expedited Outpatient Comparative Analysis
title_full Abstract Number ‐ 278: Transient Ischemic Attack Evaluation Pathways: Inpatient Versus Expedited Outpatient Comparative Analysis
title_fullStr Abstract Number ‐ 278: Transient Ischemic Attack Evaluation Pathways: Inpatient Versus Expedited Outpatient Comparative Analysis
title_full_unstemmed Abstract Number ‐ 278: Transient Ischemic Attack Evaluation Pathways: Inpatient Versus Expedited Outpatient Comparative Analysis
title_short Abstract Number ‐ 278: Transient Ischemic Attack Evaluation Pathways: Inpatient Versus Expedited Outpatient Comparative Analysis
title_sort abstract number 278 transient ischemic attack evaluation pathways inpatient versus expedited outpatient comparative analysis
url https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_1.278
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